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13061669 is a prime number
BaseRepresentation
bin110001110100…
…111000100101
3220120121020112
4301310320211
511320433134
61143542405
7216010445
oct61647045
926517215
1013061669
117411475
12445aa05
1329242ca
141a40125
1512301ce
hexc74e25

13061669 has 2 divisors, whose sum is σ = 13061670. Its totient is φ = 13061668.

The previous prime is 13061663. The next prime is 13061681. The reversal of 13061669 is 96616031.

13061669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12159169 + 902500 = 3487^2 + 950^2 .

It is a cyclic number.

It is not a de Polignac number, because 13061669 - 212 = 13057573 is a prime.

It is a super-2 number, since 2×130616692 = 341214394131122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13061663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6530834 + 6530835.

It is an arithmetic number, because the mean of its divisors is an integer number (6530835).

Almost surely, 213061669 is an apocalyptic number.

It is an amenable number.

13061669 is a deficient number, since it is larger than the sum of its proper divisors (1).

13061669 is an equidigital number, since it uses as much as digits as its factorization.

13061669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 13061669 is about 3614.0931089279. The cubic root of 13061669 is about 235.5046887003.

The spelling of 13061669 in words is "thirteen million, sixty-one thousand, six hundred sixty-nine".